期刊论文详细信息
Spin current at a magnetic junction as a probe of the Kondo state | |
Article | |
关键词: PERTURBATION EXPANSION; RENORMALIZATION-GROUP; IMPURITY; SCATTERING; | |
DOI : 10.1103/PhysRevB.104.L121401 | |
来源: SCIE |
【 摘 要 】
We investigate the spin Seebeck effect and spin pumping in a junction between a ferromagnetic insulator and a magnetic impurity deposited on a normal metal. By performing a numerical renormalization group calculation, we show that spin current is enhanced by the Kondo effect. This spin current is suppressed by an increase in temperature or a magnetic field comparable to the Kondo temperature. Our results indicate that spin transport can be a direct probe of spin excitation in strongly correlated systems.
【 授权许可】
Free